Update exporter.py to export sh_degree 0 case #3371
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Current exporter with sh_degree 0 gives color values instead of spherical harmonics coefficients
This was referenced Aug 20, 2024
brentyi
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Aug 28, 2024
* Update exporter.py for sh_degree 0 Change to write sh coefficients instead of color values * Add flag for use_sh0_renderer Add sh0 renderer case for model.config.sh_degree == 0 * fix ruff * add warning if use_sh0_renderer is used when higher order of SH is available * fix rgb export for color-only training * use ply_color_mode * better handling ply_color_mode=='rgb' when sh_degree>0 * clean RGB2SH * fix issues * update description --------- Co-authored-by: bell-one <[email protected]> Co-authored-by: Jianbo Ye <[email protected]> Co-authored-by: Brent Yi <[email protected]>
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Current exporter with sh_degree 0 gives color values instead of spherical harmonics coefficients
Which cannot be rendered with sh_degree 0 renderers such as WebGL Viewer by antimatter15
Current exporter's ply
Edited exporter's ply
If directly reference shs_0 value with model.shs_0, it makes infinity values and check
If a model trained with sh degree 0 is directly referenced as model.shs_0 in the exporter,
an infinite value occurs, so the cases are divided and recover sh value with colors.